<!DOCTYPE HTML>
<html lang="en" >
    
    <head>
        
        <meta charset="UTF-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <title>排错 | Redux 中文文档 Join the chat at https://gitter.im/camsong/redux-in-chinese</title>
        <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
        <meta name="description" content="">
        <meta name="generator" content="GitBook 2.3.3">
        
        
        <meta name="HandheldFriendly" content="true"/>
        <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
        <meta name="apple-mobile-web-app-capable" content="yes">
        <meta name="apple-mobile-web-app-status-bar-style" content="black">
        <link rel="apple-touch-icon-precomposed" sizes="152x152" href="../gitbook/images/apple-touch-icon-precomposed-152.png">
        <link rel="shortcut icon" href="../gitbook/images/favicon.ico" type="image/x-icon">
        
    <link rel="stylesheet" href="../gitbook/style.css">
    
        
        <link rel="stylesheet" href="../gitbook/plugins/gitbook-plugin-edit-link/plugin.css">
        
    
        
        <link rel="stylesheet" href="../gitbook/plugins/gitbook-plugin-prism/prism.css">
        
    
    

        
    
    
    <link rel="next" href="../docs/Glossary.html" />
    
    
    <link rel="prev" href="../docs/faq/Miscellaneous.html" />
    

        
    </head>
    <body>
        
        
    <div class="book" data-level="6" data-basepath=".." data-revision="Thu Mar 16 2017 23:41:56 GMT+0800 (CST)">
    

<div class="book-summary">
    <div class="book-search">
        <input type="text" placeholder="Type to search" class="form-control" />
    </div>
    <ul class="summary">
        
        
        
        

        

        
    
        <li class="chapter " data-level="0" data-path="index.html">
            
                
                    <a href="../index.html">
                
                        <i class="fa fa-check"></i>
                        
                        自述
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="1" data-path="docs/introduction/index.html">
            
                
                    <a href="../docs/introduction/index.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.</b>
                        
                        介绍
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.1" data-path="docs/introduction/Motivation.html">
            
                
                    <a href="../docs/introduction/Motivation.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.1.</b>
                        
                        动机
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="1.2" data-path="docs/introduction/CoreConcepts.html">
            
                
                    <a href="../docs/introduction/CoreConcepts.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.2.</b>
                        
                        核心概念
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="1.3" data-path="docs/introduction/ThreePrinciples.html">
            
                
                    <a href="../docs/introduction/ThreePrinciples.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.3.</b>
                        
                        三大原则
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="1.4" data-path="docs/introduction/PriorArt.html">
            
                
                    <a href="../docs/introduction/PriorArt.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.4.</b>
                        
                        先前技术
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="1.5" data-path="docs/introduction/Ecosystem.html">
            
                
                    <a href="../docs/introduction/Ecosystem.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.5.</b>
                        
                        生态系统
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="1.6" data-path="docs/introduction/Examples.html">
            
                
                    <a href="../docs/introduction/Examples.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.6.</b>
                        
                        示例
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2" data-path="docs/basics/index.html">
            
                
                    <a href="../docs/basics/index.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>2.</b>
                        
                        基础
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.1" data-path="docs/basics/Actions.html">
            
                
                    <a href="../docs/basics/Actions.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>2.1.</b>
                        
                        Action
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="2.2" data-path="docs/basics/Reducers.html">
            
                
                    <a href="../docs/basics/Reducers.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>2.2.</b>
                        
                        Reducer
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="2.3" data-path="docs/basics/Store.html">
            
                
                    <a href="../docs/basics/Store.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>2.3.</b>
                        
                        Store
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="2.4" data-path="docs/basics/DataFlow.html">
            
                
                    <a href="../docs/basics/DataFlow.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>2.4.</b>
                        
                        数据流
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="2.5" data-path="docs/basics/UsageWithReact.html">
            
                
                    <a href="../docs/basics/UsageWithReact.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>2.5.</b>
                        
                        搭配 React
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="2.6" data-path="docs/basics/ExampleTodoList.html">
            
                
                    <a href="../docs/basics/ExampleTodoList.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>2.6.</b>
                        
                        示例：Todo List
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="3" data-path="docs/advanced/index.html">
            
                
                    <a href="../docs/advanced/index.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.</b>
                        
                        高级
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="3.1" data-path="docs/advanced/AsyncActions.html">
            
                
                    <a href="../docs/advanced/AsyncActions.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.1.</b>
                        
                        异步 Action
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.2" data-path="docs/advanced/AsyncFlow.html">
            
                
                    <a href="../docs/advanced/AsyncFlow.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.2.</b>
                        
                        异步数据流
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.3" data-path="docs/advanced/Middleware.html">
            
                
                    <a href="../docs/advanced/Middleware.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.3.</b>
                        
                        Middleware
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.4" data-path="docs/advanced/UsageWithReactRouter.html">
            
                
                    <a href="../docs/advanced/UsageWithReactRouter.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.4.</b>
                        
                        搭配 React Router
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.5" data-path="docs/advanced/ExampleRedditAPI.html">
            
                
                    <a href="../docs/advanced/ExampleRedditAPI.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.5.</b>
                        
                        示例：Reddit API
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.6" data-path="docs/advanced/NextSteps.html">
            
                
                    <a href="../docs/advanced/NextSteps.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.6.</b>
                        
                        下一步
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="4" data-path="docs/recipes/index.html">
            
                
                    <a href="../docs/recipes/index.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.</b>
                        
                        技巧
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="4.1" data-path="docs/recipes/MigratingToRedux.html">
            
                
                    <a href="../docs/recipes/MigratingToRedux.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.1.</b>
                        
                        迁移到 Redux
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.2" data-path="docs/recipes/UsingObjectSpreadOperator.html">
            
                
                    <a href="../docs/recipes/UsingObjectSpreadOperator.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.2.</b>
                        
                        使用对象展开运算符
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.3" data-path="docs/recipes/ReducingBoilerplate.html">
            
                
                    <a href="../docs/recipes/ReducingBoilerplate.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.3.</b>
                        
                        减少样板代码
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.4" data-path="docs/recipes/ServerRendering.html">
            
                
                    <a href="../docs/recipes/ServerRendering.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.4.</b>
                        
                        服务端渲染
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.5" data-path="docs/recipes/WritingTests.html">
            
                
                    <a href="../docs/recipes/WritingTests.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.5.</b>
                        
                        编写测试
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.6" data-path="docs/recipes/ComputingDerivedData.html">
            
                
                    <a href="../docs/recipes/ComputingDerivedData.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.6.</b>
                        
                        计算衍生数据
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.7" data-path="docs/recipes/ImplementingUndoHistory.html">
            
                
                    <a href="../docs/recipes/ImplementingUndoHistory.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.7.</b>
                        
                        实现撤销重做
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.8" data-path="docs/recipes/IsolatingSubapps.html">
            
                
                    <a href="../docs/recipes/IsolatingSubapps.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.8.</b>
                        
                        子应用隔离
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.9" data-path="docs/recipes/StructuringReducers.html">
            
                
                    <a href="../docs/recipes/StructuringReducers.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.9.</b>
                        
                        组织 Reducer
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="4.9.1" data-path="docs/recipes/reducers/PrerequisiteConcepts.html">
            
                
                    <a href="../docs/recipes/reducers/PrerequisiteConcepts.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.9.1.</b>
                        
                        Reducer 基础概念
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.9.2" data-path="docs/recipes/reducers/BasicReducerStructure.html">
            
                
                    <a href="../docs/recipes/reducers/BasicReducerStructure.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.9.2.</b>
                        
                        Reducer 基础结构
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.9.3" data-path="docs/recipes/reducers/SplittingReducerLogic.html">
            
                
                    <a href="../docs/recipes/reducers/SplittingReducerLogic.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.9.3.</b>
                        
                        Reducer 逻辑拆分
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.9.4" data-path="docs/recipes/reducers/RefactoringReducersExample.html">
            
                
                    <a href="../docs/recipes/reducers/RefactoringReducersExample.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.9.4.</b>
                        
                        Reducer 重构示例
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.9.5" data-path="docs/recipes/reducers/UsingCombineReducers.html">
            
                
                    <a href="../docs/recipes/reducers/UsingCombineReducers.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.9.5.</b>
                        
                        `combineReducers` 用法
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.9.6" data-path="docs/recipes/reducers/BeyondCombineReducers.html">
            
                
                    <a href="../docs/recipes/reducers/BeyondCombineReducers.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.9.6.</b>
                        
                        `combineReducers` 进阶
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.9.7" data-path="docs/recipes/reducers/NormalizingStateShape.html">
            
                
                    <a href="../docs/recipes/reducers/NormalizingStateShape.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.9.7.</b>
                        
                        State 范式化
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.9.8" data-path="docs/recipes/reducers/UpdatingNormalizedData.html">
            
                
                    <a href="../docs/recipes/reducers/UpdatingNormalizedData.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.9.8.</b>
                        
                        管理范式化数据
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.9.9" data-path="docs/recipes/reducers/ReusingReducerLogic.html">
            
                
                    <a href="../docs/recipes/reducers/ReusingReducerLogic.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.9.9.</b>
                        
                        Reducer 逻辑复用
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.9.10" data-path="docs/recipes/reducers/ImmutableUpdatePatterns.html">
            
                
                    <a href="../docs/recipes/reducers/ImmutableUpdatePatterns.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.9.10.</b>
                        
                        不可变更新模式
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="4.9.11" data-path="docs/recipes/reducers/InitializingState.html">
            
                
                    <a href="../docs/recipes/reducers/InitializingState.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.9.11.</b>
                        
                        初始化 State
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="5" data-path="docs/FAQ.html">
            
                
                    <a href="../docs/FAQ.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>5.</b>
                        
                        常见问题
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="5.1" data-path="docs/faq/General.html">
            
                
                    <a href="../docs/faq/General.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>5.1.</b>
                        
                        综合
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="5.2" data-path="docs/faq/Reducers.html">
            
                
                    <a href="../docs/faq/Reducers.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>5.2.</b>
                        
                        Reducer
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="5.3" data-path="docs/faq/OrganizingState.html">
            
                
                    <a href="../docs/faq/OrganizingState.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>5.3.</b>
                        
                        组织 State
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="5.4" data-path="docs/faq/StoreSetup.html">
            
                
                    <a href="../docs/faq/StoreSetup.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>5.4.</b>
                        
                        创建 Store
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="5.5" data-path="docs/faq/Actions.html">
            
                
                    <a href="../docs/faq/Actions.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>5.5.</b>
                        
                        Action
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="5.6" data-path="docs/faq/CodeStructure.html">
            
                
                    <a href="../docs/faq/CodeStructure.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>5.6.</b>
                        
                        代码结构
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="5.7" data-path="docs/faq/Performance.html">
            
                
                    <a href="../docs/faq/Performance.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>5.7.</b>
                        
                        性能
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="5.8" data-path="docs/faq/ReactRedux.html">
            
                
                    <a href="../docs/faq/ReactRedux.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>5.8.</b>
                        
                        React Redux
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="5.9" data-path="docs/faq/Miscellaneous.html">
            
                
                    <a href="../docs/faq/Miscellaneous.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>5.9.</b>
                        
                        其它
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter active" data-level="6" data-path="docs/Troubleshooting.html">
            
                
                    <a href="../docs/Troubleshooting.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>6.</b>
                        
                        排错
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="7" data-path="docs/Glossary.html">
            
                
                    <a href="../docs/Glossary.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>7.</b>
                        
                        词汇表
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="8" data-path="docs/api/index.html">
            
                
                    <a href="../docs/api/index.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>8.</b>
                        
                        API 文档
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="8.1" data-path="docs/api/createStore.html">
            
                
                    <a href="../docs/api/createStore.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>8.1.</b>
                        
                        createStore
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="8.2" data-path="docs/api/Store.html">
            
                
                    <a href="../docs/api/Store.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>8.2.</b>
                        
                        Store
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="8.3" data-path="docs/api/combineReducers.html">
            
                
                    <a href="../docs/api/combineReducers.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>8.3.</b>
                        
                        combineReducers
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="8.4" data-path="docs/api/applyMiddleware.html">
            
                
                    <a href="../docs/api/applyMiddleware.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>8.4.</b>
                        
                        applyMiddleware
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="8.5" data-path="docs/api/bindActionCreators.html">
            
                
                    <a href="../docs/api/bindActionCreators.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>8.5.</b>
                        
                        bindActionCreators
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="8.6" data-path="docs/api/compose.html">
            
                
                    <a href="../docs/api/compose.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>8.6.</b>
                        
                        compose
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="9" data-path="docs/react-redux/index.html">
            
                
                    <a href="../docs/react-redux/index.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>9.</b>
                        
                        react-redux 文档
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="9.1" data-path="docs/react-redux/api.html">
            
                
                    <a href="../docs/react-redux/api.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>9.1.</b>
                        
                        API
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="9.2" data-path="docs/react-redux/troubleshooting.html">
            
                
                    <a href="../docs/react-redux/troubleshooting.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>9.2.</b>
                        
                        排错
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="10" >
            
                
                    <a target="_blank" href="https:/github.com/react-guide/redux-tutorial-cn">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.</b>
                        
                        redux-tutorial
                    </a>
            
            
        </li>
    


        
        <li class="divider"></li>
        <li>
            <a href="https://www.gitbook.com" target="blank" class="gitbook-link">
                Published with GitBook
            </a>
        </li>
        
    </ul>
</div>

    <div class="book-body">
        <div class="body-inner">
            <div class="book-header">
    <!-- Actions Left -->
    <a href="#" class="btn pull-left toggle-summary" aria-label="Table of Contents"><i class="fa fa-align-justify"></i></a>
    <a href="#" class="btn pull-left toggle-search" aria-label="Search"><i class="fa fa-search"></i></a>
    
    <div id="font-settings-wrapper" class="dropdown pull-left">
        <a href="#" class="btn toggle-dropdown" aria-label="Font Settings"><i class="fa fa-font"></i>
        </a>
        <div class="dropdown-menu font-settings">
    <div class="dropdown-caret">
        <span class="caret-outer"></span>
        <span class="caret-inner"></span>
    </div>

    <div class="buttons">
        <button type="button" id="reduce-font-size" class="button size-2">A</button>
        <button type="button" id="enlarge-font-size" class="button size-2">A</button>
    </div>

    <div class="buttons font-family-list">
        <button type="button" data-font="0" class="button">Serif</button>
        <button type="button" data-font="1" class="button">Sans</button>
    </div>

    <div class="buttons color-theme-list">
        <button type="button" id="color-theme-preview-0" class="button size-3" data-theme="0">White</button>
        <button type="button" id="color-theme-preview-1" class="button size-3" data-theme="1">Sepia</button>
        <button type="button" id="color-theme-preview-2" class="button size-3" data-theme="2">Night</button>
    </div>
</div>

    </div>

    <!-- Actions Right -->
    
    <div class="dropdown pull-right">
        <a href="#" class="btn toggle-dropdown" aria-label="Share"><i class="fa fa-share-alt"></i>
        </a>
        <div class="dropdown-menu font-settings dropdown-left">
            <div class="dropdown-caret">
                <span class="caret-outer"></span>
                <span class="caret-inner"></span>
            </div>
            <div class="buttons">
                <button type="button" data-sharing="twitter" class="button">
                    Share on Twitter
                </button>
                <button type="button" data-sharing="google-plus" class="button">
                    Share on Google
                </button>
                <button type="button" data-sharing="facebook" class="button">
                    Share on Facebook
                </button>
                <button type="button" data-sharing="weibo" class="button">
                    Share on Weibo
                </button>
                <button type="button" data-sharing="instapaper" class="button">
                    Share on Instapaper
                </button>
            </div>
        </div>
    </div>
    

    
    <a href="#" target="_blank" class="btn pull-right google-plus-sharing-link sharing-link" data-sharing="google-plus" aria-label="Google"><i class="fa fa-google-plus"></i></a>
    
    
    <a href="#" target="_blank" class="btn pull-right facebook-sharing-link sharing-link" data-sharing="facebook" aria-label="Facebook"><i class="fa fa-facebook"></i></a>
    
    
    <a href="#" target="_blank" class="btn pull-right twitter-sharing-link sharing-link" data-sharing="twitter" aria-label="Twitter"><i class="fa fa-twitter"></i></a>
    
    
    


    <!-- Title -->
    <h1>
        <i class="fa fa-circle-o-notch fa-spin"></i>
        <a href="../" >Redux 中文文档 Join the chat at https://gitter.im/camsong/redux-in-chinese</a>
    </h1>
</div>

            <div class="page-wrapper" tabindex="-1">
                <div class="page-inner">
                
                
                    <section class="normal" id="section-">
                    
                        <a id="edit-link" href="https://github.com/camsong/redux-in-chinese/tree/master/docs/Troubleshooting.md" class="btn fa fa-edit pull-left">&#xA0;&#xA0;&#x5F00;&#x59CB;&#x7EA0;&#x9519;</a><h1 id="%E6%8E%92%E9%94%99">&#x6392;&#x9519;</h1>
<p>&#x8FD9;&#x91CC;&#x4F1A;&#x5217;&#x51FA;&#x5E38;&#x89C1;&#x7684;&#x95EE;&#x9898;&#x548C;&#x5BF9;&#x5E94;&#x7684;&#x89E3;&#x51B3;&#x65B9;&#x6848;&#x3002;
&#x867D;&#x7136;&#x4F7F;&#x7528; React &#x505A;&#x793A;&#x4F8B;&#xFF0C;&#x4F46;&#x662F;&#x5373;&#x4F7F;&#x4F60;&#x4F7F;&#x7528;&#x4E86;&#x5176;&#x5B83;&#x5E93;&#xFF0C;&#x8FD9;&#x4E9B;&#x95EE;&#x9898;&#x548C;&#x89E3;&#x51B3;&#x65B9;&#x6848;&#x4ECD;&#x7136;&#x5BF9;&#x4F60;&#x6709;&#x6240;&#x5E2E;&#x52A9;&#x3002;</p>
<h3 id="dispatch-action-%E5%90%8E%E4%BB%80%E4%B9%88%E4%B9%9F%E6%B2%A1%E6%9C%89%E5%8F%91%E7%94%9F">dispatch action &#x540E;&#x4EC0;&#x4E48;&#x4E5F;&#x6CA1;&#x6709;&#x53D1;&#x751F;</h3>
<p>&#x6709;&#x65F6;&#xFF0C;&#x4F60; dispatch action &#x540E;&#xFF0C;view &#x5374;&#x6CA1;&#x6709;&#x66F4;&#x65B0;&#x3002;&#x8FD9;&#x662F;&#x4E3A;&#x4EC0;&#x4E48;&#x5462;&#xFF1F;&#x53EF;&#x80FD;&#x6709;&#x4E0B;&#x9762;&#x51E0;&#x79CD;&#x539F;&#x56E0;&#x3002;</p>
<h4 id="%E6%B0%B8%E8%BF%9C%E4%B8%8D%E8%A6%81%E7%9B%B4%E6%8E%A5%E4%BF%AE%E6%94%B9-reducer-%E7%9A%84%E5%8F%82%E6%95%B0">&#x6C38;&#x8FDC;&#x4E0D;&#x8981;&#x76F4;&#x63A5;&#x4FEE;&#x6539; reducer &#x7684;&#x53C2;&#x6570;</h4>
<p>&#x5982;&#x679C;&#x4F60;&#x60F3;&#x4FEE;&#x6539; Redux &#x7ED9;&#x4F60;&#x4F20;&#x5165;&#x7684; <code>state</code> &#x6216; <code>action</code>&#xFF0C;&#x8BF7;&#x4F4F;&#x624B;&#xFF01;</p>
<p>Redux &#x5047;&#x5B9A;&#x4F60;&#x6C38;&#x8FDC;&#x4E0D;&#x4F1A;&#x4FEE;&#x6539; reducer &#x91CC;&#x4F20;&#x5165;&#x7684;&#x5BF9;&#x8C61;&#x3002;<strong>&#x4EFB;&#x4F55;&#x65F6;&#x5019;&#xFF0C;&#x4F60;&#x90FD;&#x5E94;&#x8BE5;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x65B0;&#x7684; state &#x5BF9;&#x8C61;&#x3002;</strong>&#x5373;&#x4F7F;&#x4F60;&#x6CA1;&#x6709;&#x4F7F;&#x7528; <a href="https://facebook.github.io/immutable-js/" target="_blank">Immutable</a> &#x8FD9;&#x6837;&#x7684;&#x5E93;&#xFF0C;&#x4E5F;&#x8981;&#x4FDD;&#x8BC1;&#x505A;&#x5230;&#x4E0D;&#x4FEE;&#x6539;&#x5BF9;&#x8C61;&#x3002;</p>
<p>&#x4E0D;&#x53D8;&#x6027;&#xFF08;Immutability&#xFF09;&#x53EF;&#x4EE5;&#x8BA9; <a href="https://github.com/gaearon/react-redux" target="_blank">react-redux</a> &#x9AD8;&#x6548;&#x7684;&#x76D1;&#x542C; state &#x7684;&#x7EC6;&#x7C97;&#x5EA6;&#x66F4;&#x65B0;&#x3002;&#x5B83;&#x4E5F;&#x8BA9; <a href="http://github.com/gaearon/redux-devtools" target="_blank">redux-devtools</a> &#x80FD;&#x63D0;&#x4F9B;&#x201C;&#x65F6;&#x95F4;&#x65C5;&#x884C;&#x201D;&#x8FD9;&#x7C7B;&#x5F3A;&#x5927;&#x7279;&#x6027;&#x3002;</p>
<p>&#x4F8B;&#x5982;&#xFF0C;&#x4E0B;&#x9762;&#x7684; reducer &#x5C31;&#x662F;&#x9519;&#x8BEF;&#x7684;&#xFF0C;&#x56E0;&#x4E3A;&#x5B83;&#x6539;&#x53D8;&#x4E86; state&#xFF1A;</p>
<pre><code class="lang-js"><span class="token keyword">function</span> <span class="token function">todos</span><span class="token punctuation">(</span>state <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">,</span> action<span class="token punctuation">)</span> <span class="token punctuation">{</span>
  <span class="token keyword">switch</span> <span class="token punctuation">(</span>action<span class="token punctuation">.</span>type<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">case</span> <span class="token string">&apos;ADD_TODO&apos;</span><span class="token punctuation">:</span>
      <span class="token comment" spellcheck="true">// &#x9519;&#x8BEF;&#xFF01;&#x8FD9;&#x4F1A;&#x6539;&#x53D8; state.actions&#x3002;</span>
      state<span class="token punctuation">.</span><span class="token function">push</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
        text<span class="token punctuation">:</span> action<span class="token punctuation">.</span>text<span class="token punctuation">,</span>
        completed<span class="token punctuation">:</span> <span class="token keyword">false</span>
      <span class="token punctuation">}</span><span class="token punctuation">)</span>
      <span class="token keyword">return</span> state
    <span class="token keyword">case</span> <span class="token string">&apos;COMPLETE_TODO&apos;</span><span class="token punctuation">:</span>
      <span class="token comment" spellcheck="true">// &#x9519;&#x8BEF;&#xFF01;&#x8FD9;&#x4F1A;&#x6539;&#x53D8; state[action.index]&#x3002;</span>
      state<span class="token punctuation">[</span>action<span class="token punctuation">.</span>index<span class="token punctuation">]</span><span class="token punctuation">.</span>completed <span class="token operator">=</span> <span class="token keyword">true</span>
      <span class="token keyword">return</span> state
    <span class="token keyword">default</span><span class="token punctuation">:</span>
      <span class="token keyword">return</span> state
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<p>&#x5E94;&#x8BE5;&#x91CD;&#x5199;&#x6210;&#x8FD9;&#x6837;&#xFF1A;</p>
<pre><code class="lang-js"><span class="token keyword">function</span> <span class="token function">todos</span><span class="token punctuation">(</span>state <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">,</span> action<span class="token punctuation">)</span> <span class="token punctuation">{</span>
  <span class="token keyword">switch</span> <span class="token punctuation">(</span>action<span class="token punctuation">.</span>type<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">case</span> <span class="token string">&apos;ADD_TODO&apos;</span><span class="token punctuation">:</span>
      <span class="token comment" spellcheck="true">// &#x8FD4;&#x56DE;&#x65B0;&#x6570;&#x7EC4;</span>
      <span class="token keyword">return</span> <span class="token punctuation">[</span>
        <span class="token punctuation">.</span><span class="token punctuation">.</span><span class="token punctuation">.</span>state<span class="token punctuation">,</span>
        <span class="token punctuation">{</span>
          text<span class="token punctuation">:</span> action<span class="token punctuation">.</span>text<span class="token punctuation">,</span>
          completed<span class="token punctuation">:</span> <span class="token keyword">false</span>
        <span class="token punctuation">}</span>
      <span class="token punctuation">]</span>
    <span class="token keyword">case</span> <span class="token string">&apos;COMPLETE_TODO&apos;</span><span class="token punctuation">:</span>
      <span class="token comment" spellcheck="true">// &#x8FD4;&#x56DE;&#x65B0;&#x6570;&#x7EC4;</span>
      <span class="token keyword">return</span> state<span class="token punctuation">.</span><span class="token function">map</span><span class="token punctuation">(</span><span class="token punctuation">(</span>todo<span class="token punctuation">,</span> index<span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">&gt;</span> <span class="token punctuation">{</span>
        <span class="token keyword">if</span> <span class="token punctuation">(</span>index <span class="token operator">===</span> action<span class="token punctuation">.</span>index<span class="token punctuation">)</span> <span class="token punctuation">{</span>
          <span class="token comment" spellcheck="true">// &#x4FEE;&#x6539;&#x4E4B;&#x524D;&#x590D;&#x5236;&#x6570;&#x7EC4;</span>
          <span class="token keyword">return</span> Object<span class="token punctuation">.</span><span class="token function">assign</span><span class="token punctuation">(</span><span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span> todo<span class="token punctuation">,</span> <span class="token punctuation">{</span>
            completed<span class="token punctuation">:</span> <span class="token keyword">true</span>
          <span class="token punctuation">}</span><span class="token punctuation">)</span>
        <span class="token punctuation">}</span>
        <span class="token keyword">return</span> todo
      <span class="token punctuation">}</span><span class="token punctuation">)</span>
    <span class="token keyword">default</span><span class="token punctuation">:</span>
      <span class="token keyword">return</span> state
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<p>&#x867D;&#x7136;&#x9700;&#x8981;&#x5199;&#x66F4;&#x591A;&#x4EE3;&#x7801;&#xFF0C;&#x4F46;&#x662F;&#x8BA9; Redux &#x53D8;&#x5F97;&#x53EF;&#x5177;&#x6709;&#x53EF;&#x9884;&#x6D4B;&#x6027;&#x548C;&#x9AD8;&#x6548;&#x3002;&#x5982;&#x679C;&#x4F60;&#x60F3;&#x51CF;&#x5C11;&#x4EE3;&#x7801;&#x91CF;&#xFF0C;&#x4F60;&#x53EF;&#x4EE5;&#x7528;&#x4E00;&#x4E9B;&#x8F85;&#x52A9;&#x65B9;&#x6CD5;&#x7C7B;&#x4F3C;
 <a href="https://facebook.github.io/react/docs/update.html" target="_blank"><code>React<span class="token punctuation">.</span>addons<span class="token punctuation">.</span>update</code></a> &#x6765;&#x8BA9;&#x8FD9;&#x6837;&#x7684;&#x4E0D;&#x53EF;&#x53D8;&#x8F6C;&#x6362;&#x64CD;&#x4F5C;&#x53D8;&#x5F97;&#x66F4;&#x7B80;&#x5355;&#xFF1A;</p>
<pre><code class="lang-js"><span class="token comment" spellcheck="true">// &#x4FEE;&#x6539;&#x524D;</span>
<span class="token keyword">return</span> state<span class="token punctuation">.</span><span class="token function">map</span><span class="token punctuation">(</span><span class="token punctuation">(</span>todo<span class="token punctuation">,</span> index<span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">&gt;</span> <span class="token punctuation">{</span>
  <span class="token keyword">if</span> <span class="token punctuation">(</span>index <span class="token operator">===</span> action<span class="token punctuation">.</span>index<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">return</span> Object<span class="token punctuation">.</span><span class="token function">assign</span><span class="token punctuation">(</span><span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span> todo<span class="token punctuation">,</span> <span class="token punctuation">{</span>
      completed<span class="token punctuation">:</span> <span class="token keyword">true</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span>
  <span class="token keyword">return</span> todo
<span class="token punctuation">}</span><span class="token punctuation">)</span>

<span class="token comment" spellcheck="true">// &#x4FEE;&#x6539;&#x540E;</span>
<span class="token keyword">return</span> <span class="token function">update</span><span class="token punctuation">(</span>state<span class="token punctuation">,</span> <span class="token punctuation">{</span>
  <span class="token punctuation">[</span>action<span class="token punctuation">.</span>index<span class="token punctuation">]</span><span class="token punctuation">:</span> <span class="token punctuation">{</span>
    completed<span class="token punctuation">:</span> <span class="token punctuation">{</span>
      $<span class="token keyword">set</span><span class="token punctuation">:</span> <span class="token keyword">true</span>
    <span class="token punctuation">}</span>
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
</code></pre>
<p>&#x6700;&#x540E;&#xFF0C;&#x5982;&#x679C;&#x9700;&#x8981;&#x66F4;&#x65B0; object&#xFF0C;&#x4F60;&#x9700;&#x8981;&#x4F7F;&#x7528; Underscore &#x63D0;&#x4F9B;&#x7684; <code>_<span class="token punctuation">.</span>extend</code> &#x65B9;&#x6CD5;&#xFF0C;&#x6216;&#x8005;&#x66F4;&#x597D;&#x7684;&#xFF0C;&#x4F7F;&#x7528; <a href="https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/assign" target="_blank"><code>Object<span class="token punctuation">.</span>assign</code></a> &#x7684; polyfill</p>
<p>&#x8981;&#x6CE8;&#x610F; <code>Object<span class="token punctuation">.</span>assign</code> &#x7684;&#x4F7F;&#x7528;&#x65B9;&#x6CD5;&#x3002;&#x4F8B;&#x5982;&#xFF0C;&#x5728; reducer &#x91CC;&#x4E0D;&#x8981;&#x8FD9;&#x6837;&#x4F7F;&#x7528; <code>Object<span class="token punctuation">.</span><span class="token function">assign</span><span class="token punctuation">(</span>state<span class="token punctuation">,</span> newData<span class="token punctuation">)</span></code>&#xFF0C;&#x5E94;&#x8BE5;&#x7528; <code>Object<span class="token punctuation">.</span><span class="token function">assign</span><span class="token punctuation">(</span><span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span> state<span class="token punctuation">,</span> newData<span class="token punctuation">)</span></code>&#x3002;&#x8FD9;&#x6837;&#x5B83;&#x624D;&#x4E0D;&#x4F1A;&#x8986;&#x76D6;&#x4EE5;&#x524D;&#x7684; <code>state</code>&#x3002;</p>
<p>&#x4F60;&#x4E5F;&#x53EF;&#x4EE5;&#x901A;&#x8FC7; <a href="recipes/UsingObjectSpreadOperator.html">&#x5BF9;&#x8C61;&#x64CD;&#x4F5C;&#x7B26;</a>&#x3000;&#x6240;&#x8FF0;&#x7684;&#x4F7F;&#x7528;&#x66F4;&#x591A;&#x7B80;&#x6D01;&#x7684;&#x8BED;&#x6CD5;&#xFF1A;</p>
<pre><code class="lang-js"><span class="token comment" spellcheck="true">// &#x4FEE;&#x6539;&#x524D;&#xFF1A;</span>
<span class="token keyword">return</span> state<span class="token punctuation">.</span><span class="token function">map</span><span class="token punctuation">(</span><span class="token punctuation">(</span>todo<span class="token punctuation">,</span> index<span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">&gt;</span> <span class="token punctuation">{</span>
  <span class="token keyword">if</span> <span class="token punctuation">(</span>index <span class="token operator">===</span> action<span class="token punctuation">.</span>index<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">return</span> Object<span class="token punctuation">.</span><span class="token function">assign</span><span class="token punctuation">(</span><span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span> todo<span class="token punctuation">,</span> <span class="token punctuation">{</span>
      completed<span class="token punctuation">:</span> <span class="token keyword">true</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span>
  <span class="token keyword">return</span> todo
<span class="token punctuation">}</span><span class="token punctuation">)</span>

<span class="token comment" spellcheck="true">// &#x4FEE;&#x6539;&#x540E;&#xFF1A;</span>
<span class="token keyword">return</span> state<span class="token punctuation">.</span><span class="token function">map</span><span class="token punctuation">(</span><span class="token punctuation">(</span>todo<span class="token punctuation">,</span> index<span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">&gt;</span> <span class="token punctuation">{</span>
  <span class="token keyword">if</span> <span class="token punctuation">(</span>index <span class="token operator">===</span> action<span class="token punctuation">.</span>index<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">return</span> <span class="token punctuation">{</span> <span class="token punctuation">.</span><span class="token punctuation">.</span><span class="token punctuation">.</span>todo<span class="token punctuation">,</span> completed<span class="token punctuation">:</span> <span class="token keyword">true</span> <span class="token punctuation">}</span>
  <span class="token punctuation">}</span>
  <span class="token keyword">return</span> todo
<span class="token punctuation">}</span><span class="token punctuation">)</span>
</code></pre>
<p>&#x6CE8;&#x610F;&#x8FD8;&#x5728;&#x5B9E;&#x9A8C;&#x9636;&#x6BB5;&#x7684;&#x7279;&#x6027;&#x4F1A;&#x7ECF;&#x5E38;&#x6539;&#x53D8;&#x3002;</p>
<p>&#x540C;&#x65F6;&#x8981;&#x6CE8;&#x610F;&#x90A3;&#x4E9B;&#x9700;&#x8981;&#x590D;&#x5236;&#x7684;&#x6DF1;&#x5C42;&#x5D4C;&#x5957;&#x7684;&#x3000;state &#x5BF9;&#x8C61;&#x3002;&#x800C;&#x3000;<code>_<span class="token punctuation">.</span>extend</code> &#x548C; <code>Object<span class="token punctuation">.</span>assign</code>&#x3000;&#x53EA;&#x80FD;&#x63D0;&#x4F9B;&#x6D45;&#x5C42;&#x7684;&#x3000;state &#x590D;&#x5236;&#x3002;&#x5728;&#x3000;<a href="recipes/reducers/ImmutableUpdatePatterns.html#updating-nested-objects">&#x66F4;&#x65B0;&#x5D4C;&#x5957;&#x7684;&#x5BF9;&#x8C61;</a> &#x7AE0;&#x8282;&#x4E2D;&#x4F1A;&#x6559;&#x4F1A;&#x4F60;&#x5982;&#x4F55;&#x5904;&#x7406;&#x5D4C;&#x5957;&#x7684;&#x3000;state&#x3000;&#x5BF9;&#x8C61;&#x3002;</p>
<h4 id="%E4%B8%8D%E8%A6%81%E5%BF%98%E8%AE%B0%E8%B0%83%E7%94%A8-dispatch-action-api-store-md-dispatch">&#x4E0D;&#x8981;&#x5FD8;&#x8BB0;&#x8C03;&#x7528; <a href="api/Store.html#dispatch"><code><span class="token function">dispatch</span><span class="token punctuation">(</span>action<span class="token punctuation">)</span></code></a></h4>
<p>&#x5982;&#x679C;&#x4F60;&#x5B9A;&#x4E49;&#x4E86;&#x4E00;&#x4E2A; action &#x521B;&#x5EFA;&#x51FD;&#x6570;&#xFF0C;&#x8C03;&#x7528;&#x5B83;&#x5E76;<strong>&#x4E0D;</strong>&#x4F1A;&#x81EA;&#x52A8; dispatch &#x8FD9;&#x4E2A; action&#x3002;&#x6BD4;&#x5982;&#xFF0C;&#x4E0B;&#x9762;&#x7684;&#x4EE3;&#x7801;&#x4EC0;&#x4E48;&#x4E5F;&#x4E0D;&#x4F1A;&#x505A;&#xFF1A;</p>
<h4 id="-todoactions-js"><code>TodoActions<span class="token punctuation">.</span>js</code></h4>
<pre><code class="lang-js"><span class="token keyword">export</span> <span class="token keyword">function</span> <span class="token function">addTodo</span><span class="token punctuation">(</span>text<span class="token punctuation">)</span> <span class="token punctuation">{</span>
  <span class="token keyword">return</span> <span class="token punctuation">{</span> type<span class="token punctuation">:</span> <span class="token string">&apos;ADD_TODO&apos;</span><span class="token punctuation">,</span> text <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<h4 id="-addtodo-js"><code>AddTodo<span class="token punctuation">.</span>js</code></h4>
<pre><code class="lang-js"><span class="token keyword">import</span> React<span class="token punctuation">,</span> <span class="token punctuation">{</span> Component <span class="token punctuation">}</span> from <span class="token string">&apos;react&apos;</span>
<span class="token keyword">import</span> <span class="token punctuation">{</span> addTodo <span class="token punctuation">}</span> from <span class="token string">&apos;./TodoActions&apos;</span>

<span class="token keyword">class</span> <span class="token class-name">AddTodo</span> <span class="token keyword">extends</span> <span class="token class-name">Component</span> <span class="token punctuation">{</span>
  <span class="token function">handleClick</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token comment" spellcheck="true">// &#x4E0D;&#x8D77;&#x4F5C;&#x7528;!</span>
    <span class="token function">addTodo</span><span class="token punctuation">(</span><span class="token string">&apos;Fix the issue&apos;</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span>

  <span class="token function">render</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">return</span> <span class="token punctuation">(</span>
      <span class="token operator">&lt;</span>button onClick<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">&gt;</span> <span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">handleClick</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">}</span><span class="token operator">&gt;</span>
        Add
      <span class="token operator">&lt;</span><span class="token operator">/</span>button<span class="token operator">&gt;</span>
    <span class="token punctuation">)</span>
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<p>&#x5B83;&#x4E0D;&#x8D77;&#x4F5C;&#x7528;&#x662F;&#x56E0;&#x4E3A;&#x4F60;&#x7684; action &#x521B;&#x5EFA;&#x51FD;&#x6570;&#x53EA;&#x662F;&#x4E00;&#x4E2A;<strong>&#x8FD4;&#x56DE;</strong> action &#x7684;&#x51FD;&#x6570;&#x800C;&#x5DF2;&#x3002;&#x4F60;&#x9700;&#x8981;&#x624B;&#x52A8; dispatch &#x5B83;&#x3002;&#x6211;&#x4EEC;&#x4E0D;&#x80FD;&#x5728;&#x5B9A;&#x4E49;&#x65F6;&#x628A; action &#x521B;&#x5EFA;&#x51FD;&#x6570;&#x7ED1;&#x5B9A;&#x5230;&#x6307;&#x5B9A;&#x7684; Store &#x4E0A;&#xFF0C;&#x56E0;&#x4E3A;&#x5E94;&#x7528;&#x5728;&#x670D;&#x52A1;&#x7AEF;&#x6E32;&#x67D3;&#x65F6;&#x9700;&#x8981;&#x4E3A;&#x6BCF;&#x4E2A;&#x8BF7;&#x6C42;&#x90FD;&#x5BF9;&#x5E94;&#x4E00;&#x4E2A;&#x72EC;&#x7ACB;&#x7684; Redux store&#x3002;</p>
<p>&#x89E3;&#x6CD5;&#x662F;&#x8C03;&#x7528; <a href="api/Store.html">store</a> &#x5B9E;&#x4F8B;&#x4E0A;&#x7684; <a href="api/Store.html#dispatch"><code><span class="token function">dispatch</span><span class="token punctuation">(</span><span class="token punctuation">)</span></code></a> &#x65B9;&#x6CD5;&#x3002;</p>
<pre><code class="lang-js"><span class="token function">handleClick</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
  <span class="token comment" spellcheck="true">// &#x751F;&#x6548;&#xFF01;&#xFF08;&#x4F46;&#x4F60;&#x9700;&#x8981;&#x5148;&#x4EE5;&#x67D0;&#x79CD;&#x65B9;&#x5F0F;&#x62FF;&#x5230; store&#xFF09;</span>
  store<span class="token punctuation">.</span><span class="token function">dispatch</span><span class="token punctuation">(</span><span class="token function">addTodo</span><span class="token punctuation">(</span><span class="token string">&apos;Fix the issue&apos;</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token punctuation">}</span>
</code></pre>
<p>&#x5982;&#x679C;&#x7EC4;&#x4EF6;&#x7684;&#x5C42;&#x7EA7;&#x975E;&#x5E38;&#x6DF1;&#xFF0C;&#x628A; store &#x4E00;&#x5C42;&#x5C42;&#x4F20;&#x4E0B;&#x53BB;&#x5F88;&#x9EBB;&#x70E6;&#x3002;&#x56E0;&#x6B64; <a href="https://github.com/gaearon/react-redux" target="_blank">react-redux</a> &#x63D0;&#x4F9B;&#x4E86; <code>connect</code> &#x8FD9;&#x4E2A; <a href="https://medium.com/@dan_abramov/mixins-are-dead-long-live-higher-order-components-94a0d2f9e750" target="_blank">&#x9AD8;&#x9636;&#x7EC4;&#x4EF6;</a>&#xFF0C;&#x5B83;&#x9664;&#x4E86;&#x53EF;&#x4EE5;&#x5E2E;&#x4F60;&#x76D1;&#x542C; Redux store&#xFF0C;&#x8FD8;&#x4F1A;&#x628A; <code>dispatch</code> &#x6CE8;&#x5165;&#x5230;&#x7EC4;&#x4EF6;&#x7684; props &#x4E2D;&#x3002;</p>
<p>&#x4FEE;&#x590D;&#x540E;&#x7684;&#x4EE3;&#x7801;&#x662F;&#x8FD9;&#x6837;&#x7684;&#xFF1A;</p>
<h4 id="-addtodo-js"><code>AddTodo<span class="token punctuation">.</span>js</code></h4>
<pre><code class="lang-js"><span class="token keyword">import</span> React<span class="token punctuation">,</span> <span class="token punctuation">{</span> Component <span class="token punctuation">}</span> from <span class="token string">&apos;react&apos;</span>
<span class="token keyword">import</span> <span class="token punctuation">{</span> connect <span class="token punctuation">}</span> from <span class="token string">&apos;react-redux&apos;</span>
<span class="token keyword">import</span> <span class="token punctuation">{</span> addTodo <span class="token punctuation">}</span> from <span class="token string">&apos;./TodoActions&apos;</span>

<span class="token keyword">class</span> <span class="token class-name">AddTodo</span> <span class="token keyword">extends</span> <span class="token class-name">Component</span> <span class="token punctuation">{</span>
  <span class="token function">handleClick</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token comment" spellcheck="true">// &#x751F;&#x6548;&#xFF01;</span>
    <span class="token keyword">this</span><span class="token punctuation">.</span>props<span class="token punctuation">.</span><span class="token function">dispatch</span><span class="token punctuation">(</span><span class="token function">addTodo</span><span class="token punctuation">(</span><span class="token string">&apos;Fix the issue&apos;</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span>

  <span class="token function">render</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">return</span> <span class="token punctuation">(</span>
      <span class="token operator">&lt;</span>button onClick<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">&gt;</span> <span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">handleClick</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">}</span><span class="token operator">&gt;</span>
        Add
      <span class="token operator">&lt;</span><span class="token operator">/</span>button<span class="token operator">&gt;</span>
    <span class="token punctuation">)</span>
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span>

<span class="token comment" spellcheck="true">// &#x9664;&#x4E86; state&#xFF0C;`connect` &#x8FD8;&#x628A; `dispatch` &#x653E;&#x5230; props &#x91CC;&#x3002;</span>
<span class="token keyword">export</span> <span class="token keyword">default</span> <span class="token function">connect</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">(</span>AddTodo<span class="token punctuation">)</span>
</code></pre>
<p>&#x5982;&#x679C;&#x4F60;&#x60F3;&#x7684;&#x8BDD;&#x4E5F;&#x53EF;&#x4EE5;&#x628A; <code>dispatch</code> &#x624B;&#x52A8;&#x4F20;&#x7ED9;&#x5176;&#x5B83;&#x7EC4;&#x4EF6;&#x3002;</p>
<h4 id="-%E7%A1%AE%E4%BF%9D-mapstatetoprops-%E6%98%AF%E6%AD%A3%E7%A1%AE%E7%9A%84">&#x3000;&#x786E;&#x4FDD;&#x3000;mapStateToProps&#x3000;&#x662F;&#x6B63;&#x786E;&#x7684;</h4>
<p>&#x4F60;&#x53EF;&#x80FD;&#x6B63;&#x786E;&#x5730;&#x3000;diaptching &#x4E00;&#x4E2A; action&#x3000;&#x5E76;&#x4E14;&#x5C06;&#x5B83;&#x63D0;&#x5230;&#x4E86;&#x3000;reducer&#x3000;&#x4E2D;&#xFF0C;&#x4F46;&#x662F;&#x5BF9;&#x5E94;&#x7684;&#x3000;state&#x3000;&#x5374;&#x6CA1;&#x6709;&#x901A;&#x8FC7;&#x3000;props&#x3000;&#x6B63;&#x786E;&#x5730;&#x4F20;&#x8F93;&#x3002;</p>
<h2 id="%E5%85%B6%E5%AE%83%E9%97%AE%E9%A2%98">&#x5176;&#x5B83;&#x95EE;&#x9898;</h2>
<p>&#x5728; Discord <a href="http://reactiflux.com/" target="_blank">Reactiflux</a> &#x91CC;&#x7684; <strong>redux</strong> &#x9891;&#x9053;&#x91CC;&#x63D0;&#x95EE;&#xFF0C;&#x6216;&#x8005;<a href="https://github.com/reactjs/redux/issues" target="_blank">&#x63D0;&#x4EA4;&#x4E00;&#x4E2A; issue</a>&#x3002;
&#x5982;&#x679C;&#x95EE;&#x9898;&#x7EC8;&#x4E8E;&#x89E3;&#x51B3;&#x4E86;&#xFF0C;&#x8BF7;&#x628A;&#x89E3;&#x6CD5;<a href="https://github.com/reactjs/redux/edit/master/docs/Troubleshooting.md" target="_blank">&#x5199;&#x5230;&#x6587;&#x6863;&#x91CC;</a>&#xFF0C;&#x4EE5;&#x4FBF;&#x522B;&#x4EBA;&#x9047;&#x5230;&#x540C;&#x6837;&#x95EE;&#x9898;&#x65F6;&#x53C2;&#x8003;&#x3002;</p>

                    
                    </section>
                
                
                </div>
            </div>
        </div>

        
        <a href="../docs/faq/Miscellaneous.html" class="navigation navigation-prev " aria-label="Previous page: 其它"><i class="fa fa-angle-left"></i></a>
        
        
        <a href="../docs/Glossary.html" class="navigation navigation-next " aria-label="Next page: 词汇表"><i class="fa fa-angle-right"></i></a>
        
    </div>
</div>

        
<script src="../gitbook/app.js"></script>

    
    <script src="../gitbook/plugins/gitbook-plugin-edit-link/plugin.js"></script>
    

    
    <script src="../gitbook/plugins/gitbook-plugin-ga/plugin.js"></script>
    

<script>
require(["gitbook"], function(gitbook) {
    var config = {"fontSettings":{"theme":null,"family":"sans","size":2},"edit-link":{"base":"https://github.com/camsong/redux-in-chinese/tree/master","label":"开始纠错"},"ga":{"token":"UA-66122997-1","configuration":"auto"}};
    gitbook.start(config);
});
</script>

        <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-66122997-1', 'auto');ga('send', 'pageview');</script>
    </body>
    
</html>
